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A wooden box of mass 20 kg is kept on a ...

A wooden box of mass 20 kg is kept on a rough horizontal surface. The co-efficient of static friction `mu_(s)=0.41` and co-efficient of kinetic friction `mu_(k)=0.3` exist between the box and the horizontal surface. A constant force F of 70N is applied to the box at an angle of `30^(@)` with the horizontal. Find the acceleration of the box on the surface and the frictional force on the box. Take `g=10m//s^(2)`.

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The correct Answer is:
Box will not move, 60.62 N
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